diff --git a/src/main/java/run/halo/app/model/freemarker/tag/PostTagDirective.java b/src/main/java/run/halo/app/model/freemarker/tag/PostTagDirective.java
index df8a636d2..375fba429 100644
--- a/src/main/java/run/halo/app/model/freemarker/tag/PostTagDirective.java
+++ b/src/main/java/run/halo/app/model/freemarker/tag/PostTagDirective.java
@@ -60,10 +60,18 @@ public class PostTagDirective implements TemplateDirectiveModel {
                     Integer categoryId = Integer.parseInt(params.get("categoryId").toString());
                     env.setVariable("posts", builder.build().wrap(postCategoryService.listPostBy(categoryId, PostStatus.PUBLISHED)));
                     break;
+                case "listByCategorySlug":
+                    String categorySlug = params.get("categorySlug").toString();
+                    env.setVariable("posts", builder.build().wrap(postCategoryService.listPostBy(categorySlug, PostStatus.PUBLISHED)));
+                    break;
                 case "listByTagId":
                     Integer tagId = Integer.parseInt(params.get("tagId").toString());
                     env.setVariable("posts", builder.build().wrap(postTagService.listPostsBy(tagId, PostStatus.PUBLISHED)));
                     break;
+                case "listByTagSlug":
+                    String tagSlug = params.get("tagSlug").toString();
+                    env.setVariable("posts", builder.build().wrap(postTagService.listPostsBy(tagSlug, PostStatus.PUBLISHED)));
+                    break;
                 default:
                     break;
             }
diff --git a/src/main/java/run/halo/app/service/PostCategoryService.java b/src/main/java/run/halo/app/service/PostCategoryService.java
index 383666108..1e94f4fa8 100644
--- a/src/main/java/run/halo/app/service/PostCategoryService.java
+++ b/src/main/java/run/halo/app/service/PostCategoryService.java
@@ -64,6 +64,16 @@ public interface PostCategoryService extends CrudService<PostCategory, Integer>
     @NonNull
     List<Post> listPostBy(@NonNull Integer categoryId, @NonNull PostStatus status);
 
+    /**
+     * Lists post by category slug and post status.
+     *
+     * @param slug   category slug must not be null
+     * @param status post status
+     * @return a list of post
+     */
+    @NonNull
+    List<Post> listPostBy(@NonNull String slug, @NonNull PostStatus status);
+
     /**
      * Pages post by category slug name.
      *
diff --git a/src/main/java/run/halo/app/service/PostTagService.java b/src/main/java/run/halo/app/service/PostTagService.java
index 42c56a848..6868205db 100644
--- a/src/main/java/run/halo/app/service/PostTagService.java
+++ b/src/main/java/run/halo/app/service/PostTagService.java
@@ -73,6 +73,16 @@ public interface PostTagService extends CrudService<PostTag, Integer> {
     @NonNull
     List<Post> listPostsBy(@NonNull Integer tagId, @NonNull PostStatus status);
 
+    /**
+     * Lists posts by tag slug and post status.
+     *
+     * @param slug   tag slug must not be null
+     * @param status post status
+     * @return a list of post
+     */
+    @NonNull
+    List<Post> listPostsBy(@NonNull String slug, @NonNull PostStatus status);
+
     /**
      * Pages posts by tag id.
      *
diff --git a/src/main/java/run/halo/app/service/impl/PostCategoryServiceImpl.java b/src/main/java/run/halo/app/service/impl/PostCategoryServiceImpl.java
index 0f82f4b58..0cc8cc3bd 100644
--- a/src/main/java/run/halo/app/service/impl/PostCategoryServiceImpl.java
+++ b/src/main/java/run/halo/app/service/impl/PostCategoryServiceImpl.java
@@ -6,6 +6,7 @@ import org.springframework.data.domain.Sort;
 import org.springframework.stereotype.Service;
 import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
+import run.halo.app.exception.NotFoundException;
 import run.halo.app.model.dto.CategoryWithPostCountDTO;
 import run.halo.app.model.entity.Category;
 import run.halo.app.model.entity.Post;
@@ -98,7 +99,7 @@ public class PostCategoryServiceImpl extends AbstractCrudService<PostCategory, I
     @Override
     public List<Post> listPostBy(Integer categoryId, PostStatus status) {
         Assert.notNull(categoryId, "Category id must not be null");
-        Assert.notNull(categoryId, "Post status must not be null");
+        Assert.notNull(status, "Post status must not be null");
 
         // Find all post ids
         Set<Integer> postIds = postCategoryRepository.findAllPostIdsByCategoryId(categoryId, status);
@@ -106,6 +107,18 @@ public class PostCategoryServiceImpl extends AbstractCrudService<PostCategory, I
         return postRepository.findAllById(postIds);
     }
 
+    @Override
+    public List<Post> listPostBy(String slug, PostStatus status) {
+        Assert.notNull(slug, "Category slug must not be null");
+        Assert.notNull(status, "Post status must not be null");
+
+        Category category = categoryRepository.getBySlugName(slug).orElseThrow(() -> new NotFoundException("查询不到该分类的信息").setErrorData(slug));
+
+        Set<Integer> postsIds = postCategoryRepository.findAllPostIdsByCategoryId(category.getId(), status);
+
+        return postRepository.findAllById(postsIds);
+    }
+
     @Override
     public Page<Post> pagePostBy(Integer categoryId, Pageable pageable) {
         Assert.notNull(categoryId, "Category id must not be null");
@@ -120,7 +133,7 @@ public class PostCategoryServiceImpl extends AbstractCrudService<PostCategory, I
     @Override
     public Page<Post> pagePostBy(Integer categoryId, PostStatus status, Pageable pageable) {
         Assert.notNull(categoryId, "Category id must not be null");
-        Assert.notNull(categoryId, "Post status must not be null");
+        Assert.notNull(status, "Post status must not be null");
         Assert.notNull(pageable, "Page info must not be null");
 
         // Find all post ids
diff --git a/src/main/java/run/halo/app/service/impl/PostTagServiceImpl.java b/src/main/java/run/halo/app/service/impl/PostTagServiceImpl.java
index 3bd5d3186..1f993f6ef 100644
--- a/src/main/java/run/halo/app/service/impl/PostTagServiceImpl.java
+++ b/src/main/java/run/halo/app/service/impl/PostTagServiceImpl.java
@@ -6,6 +6,7 @@ import org.springframework.data.domain.Sort;
 import org.springframework.stereotype.Service;
 import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
+import run.halo.app.exception.NotFoundException;
 import run.halo.app.model.dto.TagWithPostCountDTO;
 import run.halo.app.model.entity.Post;
 import run.halo.app.model.entity.PostTag;
@@ -118,7 +119,7 @@ public class PostTagServiceImpl extends AbstractCrudService<PostTag, Integer> im
     @Override
     public List<Post> listPostsBy(Integer tagId, PostStatus status) {
         Assert.notNull(tagId, "Tag id must not be null");
-        Assert.notNull(tagId, "Post status must not be null");
+        Assert.notNull(status, "Post status must not be null");
 
         // Find all post ids
         Set<Integer> postIds = postTagRepository.findAllPostIdsByTagId(tagId, status);
@@ -126,6 +127,18 @@ public class PostTagServiceImpl extends AbstractCrudService<PostTag, Integer> im
         return postRepository.findAllById(postIds);
     }
 
+    @Override
+    public List<Post> listPostsBy(String slug, PostStatus status) {
+        Assert.notNull(slug, "Tag slug must not be null");
+        Assert.notNull(status, "Post status must not be null");
+
+        Tag tag = tagRepository.getBySlugName(slug).orElseThrow(() -> new NotFoundException("查询不到该标签的信息").setErrorData(slug));
+
+        Set<Integer> postIds = postTagRepository.findAllPostIdsByTagId(tag.getId(), status);
+
+        return postRepository.findAllById(postIds);
+    }
+
     @Override
     public Page<Post> pagePostsBy(Integer tagId, Pageable pageable) {
         Assert.notNull(tagId, "Tag id must not be null");
@@ -140,7 +153,7 @@ public class PostTagServiceImpl extends AbstractCrudService<PostTag, Integer> im
     @Override
     public Page<Post> pagePostsBy(Integer tagId, PostStatus status, Pageable pageable) {
         Assert.notNull(tagId, "Tag id must not be null");
-        Assert.notNull(tagId, "Post status must not be null");
+        Assert.notNull(status, "Post status must not be null");
         Assert.notNull(pageable, "Page info must not be null");
 
         // Find all post ids